Finish-remover.



CARLETON ELLIS, 0F MONTCLAIR, NEW JERSEY, ASSIGNOR TO CHAIDELOIDCHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF WEST VIRGINIA.

FINISH-REMOVER.

No Drawing.

To all whom it'may concern:

Be it known that I, CARnn'roN ELLIS, a citizen of the United States, andnow residing at Montclair, county of Essex, and State of New Jersey,have invented certain new and useful Improvements Relating toFinish-Removers, of which the following is a specification.

This invention relates to finish removers and relates especially tosubstantially noninflammable finish removers comprising ammonia gasincorporated with the substantially non-aqueous finish solvents.

Wood alcohol is capable of absorbing a large amount of ammonia gas atlow temperature, as when the gas is allowed to percolate through thechilled alcohol as much as 30 or 40 per cent. or so by weight of ammoniais absorbed. .Ammonia gas is also absorbed in considerable proportion bygrain or denatured alcohol or acetone. The ammonia fumes evolved whenthese mixtures are exposed to evaporation practically suppress theinflammability of the alcohol or similar vapor given oil so as to render.the solvents practically non-inflammable and by restraining theevaporation or evolution of vapors from such solvents by the use of waxyor-other evaporation-retarding or filmforming remover thickeners thediificulty due to the evolution of irritating ammonia fumes can bepractically eliminated. The absorbed ammonia in the absence of waterdoes not stain or injuriously afi'ect woods and has comparatively littleinfluence on the finish loosening or solvent powers of the incorporatedvolatile solvents. Of course other solvents may be incorfin'ated withthe alcohols or ketones, such as have been mentioned, but where benzolor other penetrating finish solvent material is incorporated it ispreferable to use only a comparatively small quantity so as to havecorrespondingly little efiect on the solvent power of the looseningsolvent for ammonia. For most purposes 15 to 30 per cent. of benzol orthe like is sufficient and gives very good results in removers of thischaracter, although of course other penetrating finish solvent such astoluol or the commercial coal tar product containing the same, and knownas solvent naphtha, turpentine, wood turpentine, light gasolene or thelike, may be used to replace in part or in whole the benzol incorporatedand of course chlorinated solvents, such as carbon- Specification ofLetters Patent.

Application filed November 10, 1909.

Patented Feb. 28, 1911.

Serial No. 527,218.

tetrachlorid may be used with good effect, the ammonia correcting anyacid tendency of the chlorinated solvents that may be developed throughhydrolysis or other action. It is desirable to incorporate suflicientwaxy or other effective evaporation-retarding material to largely orsubstantially suppress evaporation of the solvents under serviceconditions in inclosed rooms or the like, and the waxes, such asparalfin, oriceresin Wax, and especially the somewhat more saponifi ablewaxes, such as Japan w'ax, bayberry tallow, or beeswax, may be used to agreater orless extent.

A suit-able illustrative remover composition may be prepared by allowingdry ammonia gas to percolate through wood alcohol kept at a suitably lowtemperature so that from 12 to 20 per cent. of its weight of ammonia isabsorbed. 12 gallons of this ammoniated wood alcohol containing 15 percent. of ammonia may be mixed with 3 gallons of benzol with which asuitable proportion of wax has been incorporated, such as 2 pounds ofceresin and 3 pounds of beeswax. Another illustrative composition maycomprise 12 gallons of denatured alcohol containing about 10 per cent.of absorbed ammonia gas and incorporating the same with 4; gallons ofsolvent naphtha, such as contains considerable toluol and in which 2pounds of bayberry tallow and 2 pounds of ceresin have been dissolved.Another composition may comprise 15 gallons of methyl acetone containing12per cent. of absorbed ammonia with which are incorporated 3 gallons oftoluol and 1 gallon of carbontetrachlorid in which 4 pounds of paraflinand 4 pounds of beeswax have been dissolved.

Having described this invention in connection with a number ofillustrative iii-a gredients, formulas, pro ortionsand proo v esses, tothe details of-w ii'eh disclosure thew invention is not of course to belimited, what I is new is-- 1. The substantially non-inflammablenonaqueous finish remover comprising approximately 12 gallons of woodalcohol containing about 15 per cent. by weight of absorbedammonia gas,3 gallons of benzol, 2 pounds of ceresin and 3 pounds of beeswax.

2. The substantially non-inflammable nonaqueous finish removercomprising approxlmately 12 gallons of wood alcohol containing 10 to 20per cent. of absorbed ammonia gas, 3 gallons of benzol and 5 pounds ofincorporated waxy evaporation-retarding material comprising ccresin.

3. The substantially non-inflammable finish remover comprisingapproximately 12 gallons of alcohol containing about 10 to 20 per cent.of absorbed ammonia gas, and several gallons of benzol containingincorporated Waxy evaporation-retarding material.

4:. The substantially non-inflammable nonaqueous finish removercomprising loosening finish solvent material including alcoholcontaining about 10 to 20 per cent. of absorbed ammonia gas and 15 to 30per cent. of miscible penetrating solvent material containingincorporated waxy evaporation-retarding stiffening material.

5. The substantially non-inflammable finish remover containing a largeproportion of loosening finish solvent material including alcoholcontaining a considerable proportion of absorbed ammonia gas and betweenabout 15 and 30 per cent. of miscible penetrating finish solventmaterial including benzol and incorporated Waxy evaporation-retardingmaterial. 7

6. The substantially non-inflammable fin ish remover consisting-ingreater part of loosening finish solvent material including an alcoholcontaining a considerable proportion of absorbed ammonia gas to suppressinflammability and between 15 and 30 per cent. of cooperatingpenetrating solvent material containing issolved waxyevaporation-retarding stiffening material.

7. The substantiall non-aqueous finlsh remover consisting in arge partof loosening finish solvent material including an alcohol containing aconsiderable proportion of absorbed ammonia gas and a relatively smallproportion of miscible penetrating solvent material including benzolcontaining dissolved waxy evaporation-retarding stiffening material.

8. The finish remover consisting in large part of loosening finishsolvent material containing a considerable proportion of absorbedammonia gas to suppress inflammability and between about 15 'and 30 percent. of cooperating penetrating finish solvent material andincorporated waxy evaporation-retarding material.

9. The substantially non-aqueous finish remover comprising a largeproportion of loosening finish solvent material containing aconsiderable proportion of absorbed ammonia gas to suppressinfiammability combined with a relatively small .proportion ofpenetrating solvent material and evaporation-retarding stifieningmaterial including mineral wax.

10. The finish remover consisting in large part of loosening finishsolvent material containing a considerable proportion of absorbedammonia gas to suppress inflammability and between about 15 and 30 percent. of cooperating miscible penetrating finish solvent materialincluding benzol containing dissolved waxy evaporation-retardingstiffening material.

CARLETON ELLIS.

Witnesses JESSIE B. KAY, ALBERT O. THAYER.

